Tong



Feb. 16 1926.

J. D. NIXON TONG Filed March 6, 1922 Patented Feb. 16, 1926.

UNITED STATES PATENT OFFICE.

JEIDDY D. NIXON, OF HOUSTON, TEXAS, ASSIGNOR TO HOWARD F. SMITH, OFHARRIS COUNTY, TEXAS.

TONG.

Application filed March 6, 1922. Serial No. 541,609.

To all ro/ m it may concern:

Be it known that I, JEDDY D. Nixon, a citizen of the United States,residing at Houston, inthe county of Harris and State of Texas, haveinvented certain new and useful Improvements in a Tong, of whichthefollowing is a specification.

This invention relates to new and useful improvements in a tong.

One object of the invention is to provide a tong of the characterdescribed which is specially adapted for use in turning pipes and bodiesof similar contour, in the process of screwing together and unscrewingthe joints thereof.

Another object of the invention is to provide a tong which may be easilyapplied and released from the pipe and which will securely grip and turnthe same.

Another object of the invention is to provide a tong which is of simpleconstruction and may be cheaply and easily manufactured.

lVith the above and other objects in view the invention has particularrelation to certain novel features of construction, operation, andarrangement of parts, an example of which is given in this specificationand illustrated in the accompanying drawings, wherein Figure 1 is a planview of the tong, and Fig. 2 is a side View thereof.

In the drawings, the numeral 1 designates the pipe to be turned. Thenumeral 2 designates the head of the tong, whose side adjacent the pipeis arcuate to conform to the contour of the pipe. The outer end ofthishead is slotted to receive the inner end of the handle 3 which fits intosaid slot and which is pivotally secured therein by means of a suitablebolt 4. The inner end of the handle has a lateral projection 5 formedintegrally therewith. Pivoted to the head 2 there is a clamp 6 which isarcuate in form and to the free end of this clamp there is pivoted alatch 7 having the slot 8' therethrough.

The clamp 5 has a serrated jaw 9 inserted in a dove-tailed groove in theinner side of the clamp (l, and is arcuate in form to conform to thepipe. This jaw may be removed and replaced with a new one when its teethbecome dull.

When the tong is applied to the pipe, the latch is engaged over theprojection 5, which fits through the slot 8, and whose outer side isslightly concave to form a seat for the outer end ofthe latch. Thewrench is manipulated in the direction indicated by the arrow in Fig. 1,the handle forming a lever which is fulcrumed on the bolt 4L, and theprojection 5, acting through the latch 7, operates to clamp the jaw 9securely against the pipe, the head and jaw thus gripping the pipe andthe teeth of said aw preventing the slippage of the tong on the pipe.The tong may be easily released by pulling the handle 3 reversely anddisengaging the latch from the projection 5.

hat I claim is A pipe tong including a head having a deep slot at oneside, an arcuate lateral extension carried by the other side of thehead, a single handle one end of which is pivoted in said slot, alateral projection carried by the pivoted end of the handle andprojecting out beyond the slotted end of the head, an arcuate clamp oneend of which is pivoted to the free end of said extension, a U-shapedlatch pivoted to the other end of said clamp and working substantiallyparallel with the handle and adapted to engage over said projection, theinner side of said head and extension being al'cuate and forming a jawadapted to conform to the contour of the pipe, and a toothedpipeengaging grip carried by the inner side of said clamp.

In testimony whereof I have signed my name to this specification.

JEDDY D. NIXON.

